解题方法
1 . 已知
,
是椭圆
的左、右焦点,椭圆
与双曲线
的焦点相同,
与
在第二象限的交点为P,若
的中点在双曲线
的渐近线上,且
,则椭圆的离心率是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f071c0d662b2220ea1aeb81e40fa462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2427943a38dcd93c9ec9b735ffc9fe5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
2 . 已知椭圆
:
的左右焦点分别为
,
,过
的直线交椭圆
于A,B两点,若
,点
满足
,且
,则椭圆C的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d721883ffd9a2c61ed89a5790ba205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85b9697334ff5784b8fa778c7aa59c35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/620963ebd61d6f8da4875c2a23d07dbd.png)
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2024-01-22更新
|
2019次组卷
|
10卷引用:四川省绵阳市南山中学2024届高三下学期入学考试数学(理)试题
四川省绵阳市南山中学2024届高三下学期入学考试数学(理)试题四川省达州外国语学校2023-2024学年高二下学期3月月考数学试题广东省广州市五校联考2023-2024学年高二上学期期末联考数学试卷江西省南昌市第二中学2024届高三“九省联考”考后适应性测试数学试题(三)湖南省株洲市第二中学2021-2022学年高二上学期第三次月考数学试卷贵州省铜仁第一中学2023-2024学年高二下学期2月开学适应性模拟检测数学试题(已下线)黄金卷01(2024新题型)(已下线)题型23 6类圆锥曲线离心率问题解题技巧河南省信阳市新县高级中学2024届高三考前第六次适应性考试数学试题(已下线)专题7 圆锥曲线与定比分点法【练】(压轴小题大全)
名校
解题方法
3 . 法国数学家加斯帕•蒙日被称为“画法几何创始人”“微分几何之父”.他发现椭圆的两条互相垂直的切线的交点的轨迹是以该椭圆的中心为圆心的圆,这个圆被称为该椭圆的蒙日圆.若椭圆
的蒙日圆为
,则
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad8bd7057c0f2247b350f41062285811.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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|
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解题方法
4 . 设
分别为椭圆
的左,右焦点,以
为圆心且过
的圆与x轴交于另一点P,与y轴交于点Q,线段
与C交于点A.已知
与
的面积之比为
,则该椭圆的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a16c755ab3fea6ca99b13193a5d7e485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc19b3c838f96ad50f4450d0e76eb0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4085b194990fc17f8073878b8eca1a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1dcdac71e394e495d069f64e1f1ce9.png)
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|
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解题方法
5 . 已知椭圆
的两个焦点为
,
,点
,
为
上关于坐标原点对称的两点,
,
的面积记为
,且
,则
的离心率的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6297372e4b605fd93cd77099afd3c527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50667ce76318b23b69ac6b8e16dc80d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a2491c4c81e3bffae9cc8ff77bec6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2024-01-03更新
|
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4卷引用:四川省眉山市仁寿县2023-2024学年高二上学期12月联考数学试题
四川省眉山市仁寿县2023-2024学年高二上学期12月联考数学试题江西省赣州市南康中学2024届高三上学期七省联考考前数学猜题卷(九)宁夏回族自治区银川市贺兰县第一中学2023-2024学年高二上学期期末复习数学试题(五)(已下线)高二数学开学摸底考02(人教B版2019,范围:选择性必修第一册+第二册)-2023-2024学年高二数学下学期开学摸底考试卷
名校
解题方法
6 . 设椭圆的两个焦点分别为
、
,过
作椭圆长轴的垂线交椭圆于点
,若
为等腰直角三角形,则椭圆的离心率是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002ed1ebb2cb936e10ab478789f91c7c.png)
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解题方法
7 . 椭圆
的左、右焦点分别为
,
,点
是椭圆上一点,
为坐标原点.若
,
,
,则椭圆
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f977940552e09f59ea959965522dfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d4196e4ab594e04ae17a258dfe1bdb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e457eb8c28f5ab11a879c954e15ee87e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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解题方法
8 . 已知圆
经过椭圆
的两个焦点
,圆
和椭圆
在第二象限的交点为
,则椭圆
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aff09f05f96b09202e113b6f7cbde051.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43c59d943830a677873616e473939935.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f377e974873711644b9f85b0ee17d3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0047f659c182291c84c224df6b5e993f.png)
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2023-12-25更新
|
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3卷引用:四川省成都市2024届高三一模数学(理)试题
名校
9 . 已知椭圆
的左、右焦点分别为
,离心率为
,椭圆
的上顶点为
,且
,双曲线
和椭圆
有相同焦点,且双曲线
的离心率为
为曲线
与
的一个公共点.若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e48d1edbfb6a5a48f9a95551d1dbc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33558881906c228c262ff8024dcfc4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a35b148c043ddff87cc37c8891138187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e86c007ee006f2d0d3b75ce7bec6e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7285470bf401f5edaac641234ee6ff6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ee4c7900b7459d58b5f2257517d2790.png)
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10 . 设
,
分别为椭圆
与双曲线
的公共焦点,它们在第一象限内交于点
,
,若椭圆的离心率
,则双曲线
的离心率
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8210484dd6815b5bebc7b22f1389cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d62166e3ab8b16f12c27082d437fdbd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74404619ad5699e6c44c947fb569600f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d24a34afd719fd6c20771e1463d3daf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33a99190a8fd29c36d5a002e3197cc5.png)
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